RANKING · 1990 CENSUS · 99 SHOWN OF 99

Largest Black population, Iowa counties · 1990

Iowa counties ranked by the number of residents who are Black or African American, from the 1990 American Community Survey (table B03002). Each list covers the full eligible universe; download the complete data as CSV. This list covers the 99 counties in Iowa that qualify, ranked against each other statewide. The median across all 99 is 11.

IowaAll states All rankings

SAME RANKING BYCities States Metros

RELATEDHighest Asian household income Highest Black household income Highest Hispanic household income Highest White (non-Hispanic) household income Largest White (non-Hispanic) population Highest White (non-Hispanic) population share

RANKPLACESTATEPOPBLACK POPULATIONVS –

01Polk County, IAIA516,54614,360–

02Black Hawk County, IAIA131,5328,493–

03Scott County, IAIA175,2597,728–

04Linn County, IAIA232,0283,200–

05Johnson County, IAIA160,0441,993–

06Woodbury County, IAIA106,6491,936–

07Des Moines County, IAIA38,0771,237–

08Story County, IAIA101,2911,223–

09Lee County, IAIA32,3061,164–

10Clinton County, IAIA46,002692–

11Webster County, IAIA36,838671–

12Pottawattamie County, IAIA92,996425–

13Cerro Gordo County, IAIA42,372355–

14Jones County, IAIA21,253303–

15Dubuque County, IAIA99,381298–

16Wapello County, IAIA35,210297–

17Henry County, IAIA19,349243–

18Marshall County, IAIA39,890165–

19Hardin County, IAIA16,455139–

20Jasper County, IAIA38,153131–

21Jefferson County, IAIA15,291106–

22Muscatine County, IAIA41,853104–

23Louisa County, IAIA10,41694–

24Washington County, IAIA22,66776–

25Appanoose County, IAIA12,07775–

26Bremer County, IAIA25,29673–

27Monroe County, IAIA7,40670–

28Poweshiek County, IAIA18,36859–

29Page County, IAIA14,85659–

30Crawford County, IAIA16,23758–

31Mahaska County, IAIA21,88053–

32Buchanan County, IAIA20,88351–

33Cherokee County, IAIA11,36950–

34Fayette County, IAIA19,04746–

35Dallas County, IAIA118,45744–

36Warren County, IAIA57,33144–

37Boone County, IAIA26,79941–

38Buena Vista County, IAIA20,44939–

39Marion County, IAIA34,19236–

40Union County, IAIA11,82929–

41Calhoun County, IAIA9,56229–

42Tama County, IAIA16,79627–

43Winnebago County, IAIA10,25124–

44Sioux County, IAIA36,77422–

45Plymouth County, IAIA25,69721–

46Winneshiek County, IAIA19,73317–

47Decatur County, IAIA7,65515–

48Humboldt County, IAIA9,40914–

49Palo Alto County, IAIA8,89913–

50Mitchell County, IAIA10,65011–

51Cedar County, IAIA18,35911–

52Benton County, IAIA26,00410–

53Butler County, IAIA14,04910–

54Guthrie County, IAIA10,78210–

55Mills County, IAIA14,79310–

56Cass County, IAIA12,9609–

57Emmet County, IAIA9,1079–

58Grundy County, IAIA12,3619–

59Iowa County, IAIA16,5049–

60Shelby County, IAIA11,6899–

61Carroll County, IAIA20,3038–

62Clay County, IAIA16,2028–

63Howard County, IAIA9,4158–

64Jackson County, IAIA19,2888–

65Worth County, IAIA7,3388–

66Allamakee County, IAIA14,2387–

67Clayton County, IAIA16,8457–

68Davis County, IAIA9,2307–

69Sac County, IAIA9,5256–

70Delaware County, IAIA17,6744–

71Madison County, IAIA17,2704–

72O'Brien County, IAIA14,2204–

73Osceola County, IAIA5,9804–

74Wright County, IAIA12,8013–

75Taylor County, IAIA5,8352–

76Adams County, IAIA3,6172–

77Fremont County, IAIA6,5222–

78Harrison County, IAIA14,6232–

79Ida County, IAIA6,7772–

80Keokuk County, IAIA9,7972–

81Pocahontas County, IAIA6,8192–

82Van Buren County, IAIA7,1312–

83Clarke County, IAIA9,5740–

84Greene County, IAIA8,6580–

85Adair County, IAIA7,4030–

86Audubon County, IAIA5,5090–

87Chickasaw County, IAIA11,6630–

88Dickinson County, IAIA18,0770–

89Floyd County, IAIA14,9010–

90Franklin County, IAIA9,8680–

91Hamilton County, IAIA14,9440–

92Hancock County, IAIA10,5280–

93Kossuth County, IAIA14,3220–

94Lucas County, IAIA8,8470–

95Lyon County, IAIA12,3540–

96Monona County, IAIA8,5390–

97Montgomery County, IAIA10,0020–

98Ringgold County, IAIA4,6420–

99Wayne County, IAIA6,7380–

SHOWING 1–99 OF 99

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS